Performance testing services in India

Everything feels fast with ten people on the site. The real question is what happens with ten thousand. We simulate that traffic, find the exact point where things slow down, and help your team fix it well before the big day.

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  • JMeter
  • k6
  • Gatling
  • Grafana
  • New Relic
Performance testing services in India

Slow is the new down

Customers rarely wait for a slow page. They leave, and many don't come back. These are the situations that usually bring teams to us.

The site fell over during a sale

Your team spends weeks planning a sale. The emails go out, people arrive, and within minutes the checkout page stops loading. We have seen this happen to well-run companies, not just small ones.

Every release is a little slower

No single change is to blame. A query here, an extra API call there. Without checks for performance regression, nobody notices until users start complaining.

"It was fine in testing"

The test environment had a tenth of the data and none of the real traffic patterns. So the results looked great and meant very little.

What is the difference between load, stress and spike testing?

These terms get mixed up a lot, even by engineers. Each test is run for a different reason, and in most projects we end up using two or three of them together.

Test type The question it answers Typical use
Load testing Does the app stay fast at the traffic we expect? Before every major release
Stress testing Where does it break, and does it recover cleanly? Finding the real ceiling
Spike testing What happens if traffic jumps all at once? Sales, ticket drops, TV ads
Endurance (soak) testing Does it slow down after running for hours? Catching memory leaks
Volume testing Does it cope when the database gets very large? Growing products, data migrations
Scalability testing Does adding servers actually add capacity? Capacity planning and cloud budgets

Our performance testing services

We don't stop at a report full of graphs. As a performance engineering team, we stay with you until the slow parts are fixed and proven fixed.

Load testing with JMeter

JMeter is free, flexible and supports almost every protocol. Our load testing services use it, or k6 and Gatling, to recreate realistic user journeys at scale.

Stress and spike testing for traffic surges

Our stress testing services deliberately go beyond your normal traffic. This tells you which part of the system gives way first, what users see when it does, and how quickly things return to normal afterwards.

Endurance (soak) testing for memory leaks and stability

Some problems only show up after eight or twelve hours. We keep steady load running long enough to catch slow leaks and creeping response times.

Scalability analysis and capacity planning

Our scalability testing services show how much each extra server really buys you, so you can plan capacity without overpaying for cloud you don't need.

Response time and latency monitoring (P95, P99)

Averages hide pain. We track P95 and P99 latency, the experience of your slowest users, alongside requests per second and error rates.

Bottleneck analysis across database, cache, queue and code

Slowness has to come from somewhere. We trace each request through every layer until we find the step that's holding everything else up.

APM correlation and root cause analysis

During each test we keep your application performance monitoring tools open, whether that is New Relic, Datadog, Dynatrace or something else. Comparing the two side by side lets us point to the actual cause of a slowdown instead of guessing at it.

Performance test reporting and benchmarking

Every test ends with a report. The first page is a short summary written for managers, and the pages after it hold the charts and logs your engineers will want. We also save the results so the next test can be compared against this one.

API load testing services

Your mobile app, web front end and partners all hit the same APIs. We load test them directly to find limits before any client does.

Mobile app performance testing services

Start-up time, battery drain, memory use and behaviour on a weak 4G signal, checked on real phones, plus load on the backend behind them.

Database performance testing and tuning services

Slow queries, missing indexes and lock contention are behind a lot of slow apps. We find them under load and help with database tuning until the numbers hold.

How to do load testing for a web application

Web application load testing is only useful if it looks like real life. This is the process we follow on every project.

  1. 1

    Set targets

    How many concurrent users, how many requests per second, and how fast is fast enough? We agree on numbers before writing a single script.

  2. 2

    Prepare the environment

    A test environment sized like production, filled with production-like data. Otherwise the results won't mean much.

  3. 3

    Script real journeys

    We look at your analytics to see what visitors really do, such as how many browse, how many search and how many buy. The test scripts copy that mix, including the short pauses people take between clicks.

  4. 4

    Run and watch

    Load, stress, spike or soak, depending on the goal. Your monitoring stays open the whole time so we see what the servers see.

  5. 5

    Find, fix, retest

    Once we know what is slowing things down, we sit with your developers to work out a fix. After the change goes in, we run the same test again to check that it made a real difference.

How do you find a performance bottleneck in a web application?

Layer by layer. A slow page is like a traffic jam: the queue shows up in one place, but the cause is usually somewhere further down the road.

We follow a single slow request from the browser all the way to the database, timing each hop. Whichever layer eats the most time under load is where we dig in.

Layers checked

  • Browser and network — Heavy pages, too many requests, no CDN
  • Application code — Slow loops, blocking calls, chatty services
  • Cache — Low hit rate, keys expiring all at once
  • Queues — Workers can't keep up, messages pile up
  • Database — Missing indexes, locks, small connection pools

In our experience, the database is the most common culprit, but never assume. Measure first.

Which is better: JMeter, k6 or Gatling?

All three are good. We also work with LoadRunner for enterprises that already own it. The best fit depends on your team and how you want to run the tests.

Attribute JMeter k6 Gatling LoadRunner
Licence Open source Open source Open source, paid enterprise edition Commercial
How tests are written GUI or XML test plans JavaScript Java, Kotlin or Scala code Scripts and recorder
Strong point Huge plugin ecosystem, many protocols Lightweight and easy to run in CI Efficient engine, detailed reports Very wide protocol support
Pick it when You need broad protocol coverage on a budget Developers will own the tests Your team is comfortable with JVM languages You already have licences and legacy systems

Performance testing in a CI/CD pipeline

A big load test before launch is good. Catching a slowdown the day it's introduced is better. CI/CD performance testing makes speed something you check on every release, not once a year.

On every build

A short, light test on key endpoints. If P95 latency gets worse than the agreed threshold, the build fails.

Every night

A longer run that is compared with last week's benchmark, so gradual drift shows up early.

Before a big release

A full load and stress test against a production-sized environment.

Who we help

Highlighted

eCommerce: sale-event readiness

Diwali, Black Friday and flash sales can bring a huge jump in visitors over a few hours. Our load testing for eCommerce peak sales starts several weeks before the event, which leaves time to fix any problems and run the test again.

Healthcare

Performance testing for healthcare platforms, where a slow system can delay care. We test with synthetic patient data and never touch real records.

SaaS and API businesses

For a SaaS company, signing one big customer can mean a sudden rise in usage. Our application performance testing tells you whether the platform can cope before the contract is signed, not after.

Mobile apps

People are quick to delete an app that feels slow. We test the app itself on real phones and, at the same time, put load on the servers it talks to, because problems often come from both sides.

How much does performance testing cost?

The cost depends mainly on how many user journeys we need to test, how much traffic we have to simulate, and whether you want our help fixing what we find. Most clients choose one of the three options below.

Performance audit

₹25,000 fixed

A one-off load and stress test of your key journeys, with a bottleneck report and clear recommendations.

Most popular

Sale-event readiness

₹55,000 per event

Several rounds of testing before a launch or sale, help with fixes, and an engineer on call during the event itself.

Performance engineering

₹32,000 / month

Ongoing performance engineering services: tests in your pipeline, monthly benchmarks and tuning support.

FAQ

Frequently asked questions

How many concurrent users can my application handle?
There is no way to know this without testing, because the answer depends on your code, your database, your hosting and what users are doing at the time. For example, five hundred people reading product pages put far less strain on a system than five hundred people paying at the same moment. A stress test gives you an actual figure for your app and shows which part fails first when that figure is exceeded.

What is the difference between load testing, stress testing and spike testing?
Load testing runs the app at the level of traffic you normally expect and checks that it stays quick. Stress testing keeps increasing the number of users until the system starts to fail, which shows you its upper limit. Spike testing sends a sudden jump in traffic, similar to what happens when a sale opens or a TV advert airs, and looks at how the system handles it and how fast it recovers.

Which tool is better: JMeter, k6 or Gatling?
There's no single winner. JMeter is the most flexible and has been around the longest. k6 is popular with developers because tests are plain JavaScript and slot neatly into a pipeline. Gatling suits teams that already work in Java or Kotlin. We usually recommend whichever one your team will keep using after we've left.

How much does performance testing cost?
Testing a few important journeys once is much cheaper than a full sale-readiness package with several test rounds and an engineer available during the event. The price mainly depends on the number of journeys, the amount of traffic to simulate and whether you need help with fixes. If you send us some details about your app, we will reply with a fixed quote.

How do you find a performance bottleneck in a web application?
We run the load test with monitoring switched on everywhere: servers, database, cache and queues. Then we follow the slowest requests through each layer and see where the time goes. Very often the answer isn't where people expect. A team might be sure they need more servers when the real problem is one unindexed query.

Can performance tests run in our CI/CD pipeline?
Yes, and we'd encourage it. A short test on every build catches a slowdown on the day it's introduced, when it's still easy to trace. We set a threshold, usually on P95 response time, and the build fails if it's crossed. The heavy tests stay for nightly runs or before big releases.

Do you run load tests against our live production site?
In most cases, no. We would rather use a separate environment that is the same size as production and holds similar data. There are times when a test on the live site is worth doing, such as just before a very large sale. When that happens, we agree on a low-traffic time with your operations team, keep them involved throughout, and decide in advance exactly when we would stop the test.

How early should we start preparing for a big sale?
We recommend starting six to eight weeks before the sale. This gives enough time for a first test, for your team to fix the issues it uncovers, for a second test to confirm the fixes, and for one last full rehearsal. If testing starts only a week before, there is often no time left to deal with what it finds.
Free performance review

Find out how much traffic your app can take.

Tell us about your app and any big dates coming up. A performance engineer will review your setup and, on a free 30-minute call, tell you where they'd expect trouble and how to test for it.

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